| 제목 |
80k급 고장력강용 용접와이어 적용에 따른 내구영향도 연구 |
| 분야 |
지능형 샤시 및 제어 |
| 언어 |
Korean |
| 저자 |
김준형(현대모비스), 최돈현(현대모비스), 박민수(현대모비스), 김경훈(현대모비스), 배규열(포스코), 이태영(화신) |
| Key Words |
GMAW(Gas Metal Arc Welding, 가스 금속 아크 용접), Fatigue(피로), Load(하중), Suspension(서스펜션), Durability enhancement technology(내구성 강화기술), UHSS(ULTRA High Strength Steel, 초고강도강) |
| 초록 |
The subframe is the component that supports the heaviest loads in vehicle suspension, and its fatigue durability is primarily vulnerable at the welded joints. Solutions to address the fatigue durability issues of these welded joints are post-treatment of the weld beads and design modifications of the joints. This study investigates the changes in fatigue life resulting from increased strength of the welding wire to enhance the durability performance of the weld. We evaluated the fatigue durability performance using an 80k-grade welding wire and conducted a comparative analysis with a 50k-grade welding wire. Through specimen durability tests, we established the properties of the 80k welding wire, and based on this, we conducted tests and analyses of component durability. |
| 원문(PDF) |
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